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            <CityNm>BROOKLYN</CityNm>
            <StateAbbreviationCd>NY</StateAbbreviationCd>
            <ZIPCd>11242</ZIPCd>
          </RecipientUSAddress>
          <RecipientRelationshipTxt>NONE</RecipientRelationshipTxt>
          <RecipientFoundationStatusCd>NC</RecipientFoundationStatusCd>
          <GrantOrContributionPurposeTxt>CHARITABLE DONATION AIMED AT CONSERVING BIODIVERSITY AND LIMITING GLOBAL CLIMATE CHANGE.</GrantOrContributionPurposeTxt>
          <Amt>100000</Amt>
        </GrantOrContributionPdDurYrGrp>
        <GrantOrContributionPdDurYrGrp>
          <RecipientBusinessName>
            <BusinessNameLine1Txt>ISLAND CONSERVATION</BusinessNameLine1Txt>
          </RecipientBusinessName>
          <RecipientUSAddress>
            <AddressLine1Txt>630 WATER STREET</AddressLine1Txt>
            <CityNm>SANTA CRUZ</CityNm>
            <StateAbbreviationCd>CA</StateAbbreviationCd>
            <ZIPCd>95050</ZIPCd>
          </RecipientUSAddress>
          <RecipientRelationshipTxt>NONE</RecipientRelationshipTxt>
          <RecipientFoundationStatusCd>NC</RecipientFoundationStatusCd>
          <GrantOrContributionPurposeTxt>CHARITABLE DONATION AIMED AT CONSERVING BIODIVERSITY AND LIMITING GLOBAL CLIMATE CHANGE.</GrantOrContributionPurposeTxt>
          <Amt>100000</Amt>
        </GrantOrContributionPdDurYrGrp>
        <GrantOrContributionPdDurYrGrp>
          <RecipientBusinessName>
            <BusinessNameLine1Txt>LEGADO</BusinessNameLine1Txt>
          </RecipientBusinessName>
          <RecipientUSAddress>
            <AddressLine1Txt>PO BOX 173</AddressLine1Txt>
            <CityNm>JACKSON</CityNm>
            <StateAbbreviationCd>NH</StateAbbreviationCd>
            <ZIPCd>03846</ZIPCd>
          </RecipientUSAddress>
          <RecipientRelationshipTxt>NONE</RecipientRelationshipTxt>
          <RecipientFoundationStatusCd>NC</RecipientFoundationStatusCd>
          <GrantOrContributionPurposeTxt>CHARITABLE DONATION AIMED AT CONSERVING BIODIVERSITY AND LIMITING GLOBAL CLIMATE CHANGE.</GrantOrContributionPurposeTxt>
          <Amt>100000</Amt>
        </GrantOrContributionPdDurYrGrp>
        <GrantOrContributionPdDurYrGrp>
          <RecipientBusinessName>
            <BusinessNameLine1Txt>MALIASILI</BusinessNameLine1Txt>
          </RecipientBusinessName>
          <RecipientUSAddress>
            <AddressLine1Txt>4 CARMICHAEL ST STE 111-193</AddressLine1Txt>
            <CityNm>ESSEX JUNCTION</CityNm>
            <StateAbbreviationCd>VT</StateAbbreviationCd>
            <ZIPCd>05452</ZIPCd>
          </RecipientUSAddress>
          <RecipientRelationshipTxt>NONE</RecipientRelationshipTxt>
          <RecipientFoundationStatusCd>NC</RecipientFoundationStatusCd>
          <GrantOrContributionPurposeTxt>CHARITABLE DONATION AIMED AT CONSERVING BIODIVERSITY AND LIMITING GLOBAL CLIMATE CHANGE.</GrantOrContributionPurposeTxt>
          <Amt>100000</Amt>
        </GrantOrContributionPdDurYrGrp>
        <GrantOrContributionPdDurYrGrp>
          <RecipientBusinessName>
            <BusinessNameLine1Txt>MONGABAY</BusinessNameLine1Txt>
          </RecipientBusinessName>
          <RecipientUSAddress>
            <AddressLine1Txt>1259 EL CAMINO REAL 150</AddressLine1Txt>
            <CityNm>MENLO PARK</CityNm>
            <StateAbbreviationCd>CA</StateAbbreviationCd>
            <ZIPCd>94025</ZIPCd>
          </RecipientUSAddress>
          <RecipientRelationshipTxt>NONE</RecipientRelationshipTxt>
          <RecipientFoundationStatusCd>NC</RecipientFoundationStatusCd>
          <GrantOrContributionPurposeTxt>CHARITABLE DONATION AIMED AT CONSERVING BIODIVERSITY AND LIMITING GLOBAL CLIMATE CHANGE.</GrantOrContributionPurposeTxt>
          <Amt>100000</Amt>
        </GrantOrContributionPdDurYrGrp>
        <GrantOrContributionPdDurYrGrp>
          <RecipientBusinessName>
            <BusinessNameLine1Txt>SPRING STREET CLIMATE FUND</BusinessNameLine1Txt>
          </RecipientBusinessName>
          <RecipientUSAddress>
            <AddressLine1Txt>PO BOX 24685</AddressLine1Txt>
            <CityNm>BROOKLYN</CityNm>
            <StateAbbreviationCd>NY</StateAbbreviationCd>
            <ZIPCd>11202</ZIPCd>
          </RecipientUSAddress>
          <RecipientRelationshipTxt>NONE</RecipientRelationshipTxt>
          <RecipientFoundationStatusCd>NC</RecipientFoundationStatusCd>
          <GrantOrContributionPurposeTxt>CHARITABLE DONATION AIMED AT CONSERVING BIODIVERSITY AND LIMITING GLOBAL CLIMATE CHANGE.</GrantOrContributionPurposeTxt>
          <Amt>200000</Amt>
        </GrantOrContributionPdDurYrGrp>
        <GrantOrContributionPdDurYrGrp>
          <RecipientBusinessName>
            <BusinessNameLine1Txt>GREENLIGHT AMERICA</BusinessNameLine1Txt>
          </RecipientBusinessName>
          <RecipientUSAddress>
            <AddressLine1Txt>1753 HOBART STREET NW</AddressLine1Txt>
            <CityNm>WASHINGTON</CityNm>
            <StateAbbreviationCd>DC</StateAbbreviationCd>
            <ZIPCd>20009</ZIPCd>
          </RecipientUSAddress>
          <RecipientRelationshipTxt>NONE</RecipientRelationshipTxt>
          <RecipientFoundationStatusCd>NC</RecipientFoundationStatusCd>
          <GrantOrContributionPurposeTxt>CHARITABLE DONATION AIMED AT CONSERVING BIODIVERSITY AND LIMITING GLOBAL CLIMATE CHANGE.</GrantOrContributionPurposeTxt>
          <Amt>200000</Amt>
        </GrantOrContributionPdDurYrGrp>
        <GrantOrContributionPdDurYrGrp>
          <RecipientBusinessName>
            <BusinessNameLine1Txt>NEW YORK FOCUS</BusinessNameLine1Txt>
          </RecipientBusinessName>
          <RecipientUSAddress>
            <AddressLine1Txt>178 COLUMBUS AVENUE 237190</AddressLine1Txt>
            <CityNm>NEW YORK</CityNm>
            <StateAbbreviationCd>NY</StateAbbreviationCd>
            <ZIPCd>10023</ZIPCd>
          </RecipientUSAddress>
          <RecipientRelationshipTxt>NONE</RecipientRelationshipTxt>
          <RecipientFoundationStatusCd>NC</RecipientFoundationStatusCd>
          <GrantOrContributionPurposeTxt>CHARITABLE DONATION AIMED AT CONSERVING BIODIVERSITY AND LIMITING GLOBAL CLIMATE CHANGE.</GrantOrContributionPurposeTxt>
          <Amt>10000</Amt>
        </GrantOrContributionPdDurYrGrp>
        <GrantOrContributionPdDurYrGrp>
          <RecipientBusinessName>
            <BusinessNameLine1Txt>THE CLIMATE REALITY PROJECT</BusinessNameLine1Txt>
          </RecipientBusinessName>
          <RecipientUSAddress>
            <AddressLine1Txt>555 12TH STREET NW SUITE 350</AddressLine1Txt>
            <CityNm>WASHINGTON</CityNm>
            <StateAbbreviationCd>DC</StateAbbreviationCd>
            <ZIPCd>20004</ZIPCd>
          </RecipientUSAddress>
          <RecipientRelationshipTxt>NONE</RecipientRelationshipTxt>
          <RecipientFoundationStatusCd>NC</RecipientFoundationStatusCd>
          <GrantOrContributionPurposeTxt>CHARITABLE DONATION AIMED AT CONSERVING BIODIVERSITY AND LIMITING GLOBAL CLIMATE CHANGE.</GrantOrContributionPurposeTxt>
          <Amt>50000</Amt>
        </GrantOrContributionPdDurYrGrp>
        <GrantOrContributionPdDurYrGrp>
          <RecipientBusinessName>
            <BusinessNameLine1Txt>GREATER GREENER GLOSTER PROJECT</BusinessNameLine1Txt>
          </RecipientBusinessName>
          <RecipientUSAddress>
            <AddressLine1Txt>1753 HOBART STREET NW</AddressLine1Txt>
            <CityNm>WASHINGTON</CityNm>
            <StateAbbreviationCd>DC</StateAbbreviationCd>
            <ZIPCd>20009</ZIPCd>
          </RecipientUSAddress>
          <RecipientRelationshipTxt>NONE</RecipientRelationshipTxt>
          <RecipientFoundationStatusCd>NC</RecipientFoundationStatusCd>
          <GrantOrContributionPurposeTxt>CHARITABLE DONATION AIMED AT CONSERVING BIODIVERSITY AND LIMITING GLOBAL CLIMATE CHANGE.</GrantOrContributionPurposeTxt>
          <Amt>10000</Amt>
        </GrantOrContributionPdDurYrGrp>
        <TotalGrantOrContriPdDurYrAmt>1370000</TotalGrantOrContriPdDurYrAmt>
        <TotalGrantOrContriApprvFutAmt>0</TotalGrantOrContriApprvFutAmt>
      </SupplementaryInformationGrp>
      <AnalysisIncomeProducingActyGrp>
        <IntOnSavAndTempCashInvstGrp>
          <RelatedOrExemptFunctionIncmAmt>145</RelatedOrExemptFunctionIncmAmt>
        </IntOnSavAndTempCashInvstGrp>
        <DividendsAndInterestFromSecDtl>
          <RelatedOrExemptFunctionIncmAmt>652564</RelatedOrExemptFunctionIncmAmt>
        </DividendsAndInterestFromSecDtl>
        <GainSalesAstOthThanInvntryGrp>
          <RelatedOrExemptFunctionIncmAmt>216027</RelatedOrExemptFunctionIncmAmt>
        </GainSalesAstOthThanInvntryGrp>
        <SubtotalsIncmProducingActyGrp>
          <UnrelatedBusinessTaxblIncmAmt>0</UnrelatedBusinessTaxblIncmAmt>
          <ExclusionAmt>0</ExclusionAmt>
          <RelatedOrExemptFunctionIncmAmt>868736</RelatedOrExemptFunctionIncmAmt>
        </SubtotalsIncmProducingActyGrp>
        <TotalIncomeProducingActyAmt>868736</TotalIncomeProducingActyAmt>
      </AnalysisIncomeProducingActyGrp>
      <RlnOfActyToAccomOfExmptPrpsGrp>
        <RlnOfActyToAccomOfExmptPrpsGrp>
          <LineNumberTxt>3</LineNumberTxt>
          <RelationshipStatementTxt>PROVIDES FINANCIAL RESOURCES NECESSARY TO FUND CHARITABLE GRANTMAKING</RelationshipStatementTxt>
        </RlnOfActyToAccomOfExmptPrpsGrp>
        <RlnOfActyToAccomOfExmptPrpsGrp>
          <LineNumberTxt>4</LineNumberTxt>
          <RelationshipStatementTxt>PROVIDES FINANCIAL RESOURCES NECESSARY TO FUND CHARITABLE GRANTMAKING</RelationshipStatementTxt>
        </RlnOfActyToAccomOfExmptPrpsGrp>
        <RlnOfActyToAccomOfExmptPrpsGrp>
          <LineNumberTxt>8</LineNumberTxt>
          <RelationshipStatementTxt>PROVIDES FINANCIAL RESOURCES NECESSARY TO FUND CHARITABLE GRANTMAKING</RelationshipStatementTxt>
        </RlnOfActyToAccomOfExmptPrpsGrp>
      </RlnOfActyToAccomOfExmptPrpsGrp>
      <TrnsfrTransRlnNonchrtblEOGrp>
        <TrnsfrOfCashToNonchrtblEOInd>0</TrnsfrOfCashToNonchrtblEOInd>
        <TrnsfrOtherAssetNonchrtblEOInd>0</TrnsfrOtherAssetNonchrtblEOInd>
        <SalesOrExchangesOfAssetsInd>0</SalesOrExchangesOfAssetsInd>
        <PurchaseOfAssetsNonchrtblEOInd>0</PurchaseOfAssetsNonchrtblEOInd>
        <RentalOfFacilitiesOthAssetsInd>0</RentalOfFacilitiesOthAssetsInd>
        <ReimbursementArrangementsInd>0</ReimbursementArrangementsInd>
        <LoansOrLoanGuaranteesInd>0</LoansOrLoanGuaranteesInd>
        <PerformanceOfServicesEtcInd>0</PerformanceOfServicesEtcInd>
        <SharingOfFacilitiesEtcInd>0</SharingOfFacilitiesEtcInd>
        <RelationshipsNonchrtblEOInd>0</RelationshipsNonchrtblEOInd>
      </TrnsfrTransRlnNonchrtblEOGrp>
    </IRS990PF>
    <IRS990ScheduleB documentId="RetDoc1234500001">
      <Organization501c3ExemptPFInd>X</Organization501c3ExemptPFInd>
      <GeneralRuleInd>X</GeneralRuleInd>
      <ContributorInformationGrp>
        <ContributorNum>1</ContributorNum>
        <ContributorBusinessName>
          <BusinessNameLine1Txt>DYSON TRUST</BusinessNameLine1Txt>
        </ContributorBusinessName>
        <ContributorForeignAddress>
          <AddressLine1Txt>CLARIDENSTRASSE 25</AddressLine1Txt>
          <CityNm>ZURICH</CityNm>
          <CountryCd>SZ</CountryCd>
          <ForeignPostalCd>8002</ForeignPostalCd>
        </ContributorForeignAddress>
        <TotalContributionsAmt>5663903</TotalContributionsAmt>
        <PersonContributionInd>X</PersonContributionInd>
      </ContributorInformationGrp>
    </IRS990ScheduleB>
    <InvestmentsOtherSchedule2 documentId="RetDoc2018100001">
      <InvestmentsOtherGrp>
        <CategoryOrItemTxt>OTHER INVESTMENTS</CategoryOrItemTxt>
        <ListedAtCostOrFMVCd>AT COST</ListedAtCostOrFMVCd>
        <BookValueAmt>29535762</BookValueAmt>
        <EOYFMVAmt>34446524</EOYFMVAmt>
      </InvestmentsOtherGrp>
    </InvestmentsOtherSchedule2>
    <OtherDecreasesSchedule documentId="RetDoc2049800001">
      <OtherDecreasesDetail>
        <Desc>PENALTIES</Desc>
        <Amt>134</Amt>
      </OtherDecreasesDetail>
    </OtherDecreasesSchedule>
    <OtherExpensesSchedule documentId="RetDoc2003200001">
      <OtherExpensesScheduleGrp>
        <Desc>INVESTMENT FEES</Desc>
        <RevenueAndExpensesPerBooksAmt>166264</RevenueAndExpensesPerBooksAmt>
        <NetInvestmentIncomeAmt>166264</NetInvestmentIncomeAmt>
        <AdjustedNetIncomeAmt>166264</AdjustedNetIncomeAmt>
        <DisbursementsCharitablePrpsAmt>0</DisbursementsCharitablePrpsAmt>
      </OtherExpensesScheduleGrp>
      <OtherExpensesScheduleGrp>
        <Desc>FILING FEES</Desc>
        <RevenueAndExpensesPerBooksAmt>1250</RevenueAndExpensesPerBooksAmt>
        <NetInvestmentIncomeAmt>1250</NetInvestmentIncomeAmt>
        <AdjustedNetIncomeAmt>1250</AdjustedNetIncomeAmt>
        <DisbursementsCharitablePrpsAmt>0</DisbursementsCharitablePrpsAmt>
      </OtherExpensesScheduleGrp>
    </OtherExpensesSchedule>
    <OtherIncreasesSchedule documentId="RetDoc2049700001">
      <OtherIncreasesDetail>
        <Desc>WASH SALE</Desc>
        <Amt>13862</Amt>
      </OtherIncreasesDetail>
      <OtherIncreasesDetail>
        <Desc>WASH SALE</Desc>
        <Amt>7055</Amt>
      </OtherIncreasesDetail>
      <OtherIncreasesDetail>
        <Desc>ADJUSTMENT FOR UNREALIZED GAIN/LOSS</Desc>
        <Amt>6625</Amt>
      </OtherIncreasesDetail>
    </OtherIncreasesSchedule>
    <OtherProfessionalFeesSchedule documentId="RetDoc2002300001">
      <OtherProfessionalFeesDetail>
        <CategoryTxt>LEGAL FEES</CategoryTxt>
        <Amt>700</Amt>
        <NetInvestmentIncomeAmt>700</NetInvestmentIncomeAmt>
        <AdjustedNetIncomeAmt>700</AdjustedNetIncomeAmt>
        <DisbursementsCharitablePrpsAmt>0</DisbursementsCharitablePrpsAmt>
      </OtherProfessionalFeesDetail>
      <OtherProfessionalFeesDetail>
        <CategoryTxt>ACCOUNTING FEES</CategoryTxt>
        <Amt>17000</Amt>
        <NetInvestmentIncomeAmt>17000</NetInvestmentIncomeAmt>
        <AdjustedNetIncomeAmt>17000</AdjustedNetIncomeAmt>
        <DisbursementsCharitablePrpsAmt>0</DisbursementsCharitablePrpsAmt>
      </OtherProfessionalFeesDetail>
    </OtherProfessionalFeesSchedule>
    <TaxesSchedule documentId="RetDoc2002500001">
      <TaxesDetail>
        <CategoryTxt>FOREIGN TAXES</CategoryTxt>
        <Amt>16435</Amt>
        <NetInvestmentIncomeAmt>16435</NetInvestmentIncomeAmt>
        <AdjustedNetIncomeAmt>16435</AdjustedNetIncomeAmt>
        <DisbursementsCharitablePrpsAmt>0</DisbursementsCharitablePrpsAmt>
      </TaxesDetail>
    </TaxesSchedule>
  </ReturnData>
</Return>